Gentelmen ,we can discuss this for ever and you will not come to an agreement. I offered you the insight of 40 years of working in the British gun trade for 9 years of which [1968/1977] I worked on building new guns. Believe what you like, but I saw the orders for those guns, some had chokes specified some were sent out full& full. Chokes were not finish bored untill after proof, if a specific patern was required this was done when the gun was stocked up again after proof. As we are all entitled to our own opinions I will say no more and let others believe what they will.